Malaysia Airlines says it has lost contact with a plane with 239 aboard enroute from Kuala Lumpur to Beijing.

The airline said in a statement early Saturday it was attempting to locate the Boeing 777 after it lost contact with Subang Air Traffic Control at 2:40 a.m. It was scheduled to land in Beijing at 6:30 a.m.

China's state-run news agency Xinhua reported the plane was lost in airspace controlled by Vietnam, and did not make contact with Chinese air traffic controllers.

The plane is carrying 227 passengers, including two infants, and 12 crew members. The airline said it is working with authorities to locate the plane.

Boeing said on its Twitter account it is monitoring the situation, and "our thoughts are with everyone on board."

Malaysia Airlines says it has lost contact with a plane with 239 aboard enroute from Kuala Lumpur to Beijing.

The airline said in a statement early Saturday it was attempting to locate the Boeing 777 after it lost contact with Subang Air Traffic Control at 2:40 a.m. It was scheduled to land in Beijing at 6:30 a.m.

China's state-run news agency Xinhua reported the plane was lost in airspace controlled by Vietnam, and did not make contact with Chinese air traffic controllers.

The plane is carrying 227 passengers, including two infants, and 12 crew members. The airline said it is working with authorities to locate the plane.

Boeing said on its Twitter account it is monitoring the situation, and "our thoughts are with everyone on board."